Brian Dunning's FileMaker Custom Functions

WaterflowFromBTU ( BTU ; T1 ; T2 )

Water Flow in GPM From Rated BTU and Delta T Water

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Donald Zijm   Donald Zijm - Show more from this author
Zijm LLC
http://www.zijm.com

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  Sample input:
WaterflowFromBTU (15000 ; 180 ; 160 )
  Sample output:
1.5

  Function definition: (Copy & paste into FileMaker's Edit Custom Function window)

This calculation can be used to determine the rated water flow, in gpm, through a coil, when the Rated British Thermal Units (BTU) and the Design Temperature drop is known. T1 is the entering temperature and T2 is the leaving Temperature.

 

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